20984855

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{727}}^1$

素因数の和:1006

約数の個数: 16

約数和(自身を含む): 26417664

約数和(自身を除く): 5432809

約数列:

[1, 5, 23, 115, 251, 727, 1255, 3635, 5773, 16721, 28865, 83605, 182477, 912385, 4196971, 20984855]

約数ペア:

[(1, 20984855), (5, 4196971), (23, 912385), (115, 182477), (251, 83605), (727, 28865), (1255, 16721), (3635, 5773)]